Word: problems
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...going to fare very well. It's the old gambler's-ruin problem: you can only lose so much and you're not likely to keep making money indefinitely, so you're going to get wiped out eventually. But some players are big enough to triumph. They have low trading fees and get the best prices on their trades. They're the ones definitively moving prices. It's not the small speculators that we should be worried about. It's the larger speculators, like the investment banks. Because they don't even have to worry about getting wiped out - they...
...taken to switching off all the streetlights. But while the scheme saves money, it left residents like Dieter Grote and his wife worrying about their children coming home in the dark. "My wife has all the good ideas," says Grote, who runs an advertising agency. "I discussed the problem with her and we thought it must be possible to have the lights available on demand." Grote got in touch with the local utility company Lemgo and noodled a solution: How about turning on the village lights with a simple telephone call? A few months later, Lemgo had developed a special...
...Could pushing people to exercise more actually be contributing to our obesity problem? In some respects, yes. Because exercise depletes not just the body's muscles but the brain's self-control "muscle" as well, many of us will feel greater entitlement to eat a bag of chips during that lazy time after we get back from the gym. This explains why exercise could make you heavier - or at least why even my wretched four hours of exercise a week aren't eliminating all my fat. It's likely that I am more sedentary during my nonexercise hours than...
...Closing the Energy Gap The problem ultimately is about not exercise itself but the way we've come to define it. Many obesity researchers now believe that very frequent, low-level physical activity - the kind humans did for tens of thousands of years before the leaf blower was invented - may actually work better for us than the occasional bouts of exercise you get as a gym rat. "You cannot sit still all day long and then have 30 minutes of exercise without producing stress on the muscles," says Hans-Rudolf Berthoud, a neurobiologist at LSU's Pennington Biomedical Research Center...
...walk around his neighborhood several times. He also takes the stairs when possible. "Even if people can get out of their offices, out from in front of their computers, they go someplace like the mall and then take the elevator," he says. "This is the real problem, not that we don't go to the gym enough." (Read "Is There a Laziness Gene...